DA6181B.002
5 May, 2011
TYPICAL APPLICATION (Continued)
X2
X3
Cext~0.75pF
X1
VDD
AON
QO2 QO1
QI
Receiver
Output
Demodulator
&
Comparator
C3
VDD
RFIP
RFIM
OUT
L1
C2
AGC Amplifier
C1
Ferrite
Antenna
3rd Antenna
Frequency
Selection
RFI2
Power Supply/Biasing
PDN2
PDN1
VDD
VSS
AGC
DEC
CDEC
47 nF
CAGC
10 µF
VDD
Power Down /
Fast Startup /
Frequency Selection
VDD
VDD
Figure 3. Application circuit of MAS6181 in tri band receiver configuration
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